Van der Waals forces, dipole-dipole interactions and hydrogen bonds are explained. It is briefly repeated again how the polarity of molecules can be determined. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Migrationspolitik, Beratungsrealität und Situation in den Herkunftsländern Eine Kooperation von Brot für die Welt, medico international, der Stiftung PRO ASYL und der Heinrich-Böll-Stiftung Die Zahl der Ausreisen zu erhöhen, ist erklärtes Ziel der Bundesregierung und dominiert vielfach auch die m
In the island world of Southeast Asia, the animal worlds seem strangely separated. How come? In the 19th century, naturalist Alfred Russel Wallace had a theory. Source: https://www.zdf.de/dokumentation/terra-x/was-ist-die-wallace-linie-creative-commons-clip-100.html https://www.zdf.de/dokumentati
Philipp studies cancer research and has been dreaming of a career in medicine for ages. Aljosha had all of that, worked as a doctor for a long time and then decided to pursue a career as a content creator/activist/meaning fluencer. Today he sits here and talks to Philipp. About his stem cell donatio
What is nitrogen, what is reactive nitrogen? Why is too much of it a problem for humans and the environment? And what can we do about it? Our video provides answers. More information on reactive nitrogen on the UBA website at https://www.umweltbundesamt.de/themen/luft/wirkungen-von-luftschadstoffe
One of the oldest known high cultures is Uruk in Mesopotamia, today's Iraq. The first major city in world history was built there in the 4th millennium BC. Author: ZDF/Terra X/Film Produktion Stein e.K./Alexander Hogh/Martin Papirowski/Timm Westen, Roxana Ardelean/Golem Studio/Alexander Leuck/Frau
Çatalhöyük was the first large settlement in world history. It originated around 9,500 years ago in what is now Turkey. In the heyday, up to 2500 people lived there. Author: ZDF/Terra X/Film Produktion Stein e.K./Alexander Hogh/Martin Papirowski/Timm Westen, Roxana Ardelean/Golem Studio/Alexander
The oldest weapons of mankind are probably 300,000 years old. In 1994, wooden javelins were discovered in Schöningen in Lower Saxony. Their discovery radically changed our view of human evolution. Author: ZDF / Terra X / Film Produktion Stein e.K./Alexander Hogh / Martin Papirowski / Timm Westen,
One of the first figurative representations of man is the Venus of Hohle Fels. The six-centimeter sculpture is about 40,000 years old. Homo sapiens also immortalized horses, water fowl and mammoths in works of art. Author: ZDF/Terra X/Film Produktion Stein e.K./Alexander Hogh/Martin Papirowski/Tim
In Germany, around 1000 crop protection products are registered - such as insecticides or fungicides. A plant protection product consists of a toxic active ingredient and an often toxic co-formulant that makes the product water-soluble, for example. Author: 3sat/nano/DokUtopia Film/Berndt Welz/Seba
Pearl lacewings lay their eggs near termite burrows. Once the larvae have hatched, they sneak into the burrow. If a larva encounters termites there, it swings the tip of its rear end to head height of its victims and farts. Source: https://www.zdf.de/dokumentation/terra-x/das-jagdgeheimnis-der-flo
With photosynthesis, trees master one of the most important biological processes in the world. With the help of their leaves and the pigment chlorophyll, they produce their own nutrition with just three ingredients, while still producing fresh oxygen. https://www.zdf.de/dokumentation/terra-x/die-fo
